Medicament applicator



111; 9 mm. H. H. PERRATON MEDICAMENT APPLICATOR Filed April 11, 1932Patented Aug. 25, 1936 UNITED STATES PATENT OFFICE 1 Claims.

It is an object of the invention to provide a medicament applicator ofsimple construction especially adapted for use in applying a medicamentto the exterior os uteri.

Other objects are to provide such an instrument of new and improvedconstruction which is easy to operate and convenient for home use, whichplaces a definite and correct quantity of medicament on the exact areato be treated, which has smooth exterior surfaces so as to avoid injuryto tissue, and which has a bowl portion of transparent material so thatthe patient can see if it has been cleaned thoroughly and also when ithas been completely filled with medicament before being used.

Further objects will become readily apparent from the followingdescription, taken in connection with the accompanying drawing, inwhich:

Fig. 1 is an enlarged exterior view of a preferred form of theinvention.

Fig. 2 is a sectional view along the line 2-4 of Hg. 1.

Pig. 3 is a transverse section along the line 3-3 of Fig. 2.

In the form illustrated in the drawing, the invention comprises atubular body member I of transparent glass, having a slender stemportion and an enlarged cylindrical bowl portion 1. The bowl 'I isprovided with a smooth exterior surface and preferably has the side wallthereof curved inwardly at its outer end at I so as to provide a reducedopening 8' to facilitate insertion and avoid injuring the tissues. Atits other end the body member has means in the form of a laterallyextending annular flange 9 to facilitate withdrawal and manipulation ofthe instrument.

Slidably mounted in the stem portion 8 is a rod or member II which atone end extends into the bowl portion 1 of the body member, and at itsother end projects out of the stem portion I. In thepreferred form ofthe invention the rod II is provided with a pair of longitudinallyspaced annularcollars II and I! in between which an annulus?! of rubberor other suitable material is positioned. This annulus, together withthe end of the rod forms a piston or plunger which is slidably mountedin the bowl I and is adapted to eject an application of are-insertedmedicament therefrom when the rod II is actuated. At its other end therod II is preferably flanged as at it so as to facilitate the actuationof the plunger byauser.

In operation it is merely necessary for a pa- (Cl. 12826l) tient towithdraw the plunger to the position shown in Fig. 2 and place themedicament or Jell into the bowl portion I through the opening 8". Thebody member is theninserted by the patient and the application ofmedicament expelled by pressing on the end of the rod. The flange I! maybe constructed to fit somewhat snugly into the opening 8 to insure acomplete expulsion of the medicament. The bowl I is preferably made of atransparent material so that the patient may observe if it is thoroughlyclean before filling, and also whether it has been filled completelybefore insertion, the plunger being water tight so as to insure easycleaning by suction.

The bowl is made of such a size that when completely filled it willcontain the correct amount of medicament for a proper application to theexact area to be treated. By turning in the side wall of the bowl at itsopen end the medicament is effectively held in the bowl until theinstrument has been inserted and is in proper position for the ejectionof the contents of the bowl.

While I have shown in the drawing and have herein described in detailthe preferred form of my invention, it is to be understood that I do notthereby intend to limit the invention to the speciflc formdisclosed,'but aim to cover all modifications and alternativeconstructions falling within the spirit and scope of the invention asexpressed in the appended claim.

I claim as my invention:

A medicament applicator for internal use comprising a tubular bodymember having a slender stem portion and an enlarged cylindrical bowlportion at one end thereof, said bowl portion having a smooth exteriorsurface and having the side walls thereof curved rapidly inwardly at itsouter end to form a rounded end to facilitate insertion and avoid injuryand an internal flange to provide a reduced opening to retain medicamentin the bowl portion, a rod extending through the stem portion and intothe bowl portion, longitudinally spacedcollars on the end of the rod insaid bowl portion, and an annular sealing member on said endintermediate said collar forming a piston operable by said rod to ejectmedicament, one of said collars being at the extreme forward end of saidrod and receivable within the opening to extend thereinto when thepiston is at its extreme forward position, thereby to assure a completedischarge of a measured quantity of medicament.

HORACE H. PERRA'I'ON.

